Home / 90,667,500.80-136,001,251.20-82,731,315.20

Finding the Fourth Proportional to 90,667,500.80, 136,001,251.20 and 82,731,315.20

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Solution

The fourth proportional to 90,667,500.80, 136,001,251.20 and 82,731,315.20 is: 124,096,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,667,500.80 : 136,001,251.20 = 82,731,315.20 : x
  2. Step 2: Convert to fraction form
    90,667,500.80/136,001,251.20 = 82,731,315.20/x
  3. Step 3: Cross multiply
    90,667,500.80x = 136,001,251.20 × 82,731,315.20
  4. Step 4: Simplify right side
    90,667,500.80x = 11,251,562,380,621,578
  5. Step 5: Solve for x
    x = 11,251,562,380,621,578/90,667,500.80
  6. Step 6: Final answer
    x = 124,096,972.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.